大约有 36,010 项符合查询结果(耗时:0.0320秒) [XML]
Check if a file exists with wildcard in shell script [duplicate]
...t should be to rely on ls return value (it returns non-zero when the files do not exist):
if ls /path/to/your/files* 1> /dev/null 2>&1; then
echo "files do exist"
else
echo "files do not exist"
fi
I redirected the ls output to make it completely silent.
EDIT: Since this answe...
Git resolve conflict using --ours/--theirs for all files
... for all files using checkout --ours and --theirs ? I know that you can do it for individual files but couldn't find a way to do it for all.
...
How do I use regex in a SQLite query?
I'd like to use a regular expression in sqlite, but I don't know how.
17 Answers
17
...
C# 'is' operator performance
...at it then returns null instead of false.
– Konrad Rudolph
Nov 29 '09 at 23:55
add a comment
|
...
Check if object exists in JavaScript
How do I verify the existence of an object in JavaScript?
18 Answers
18
...
How do I deal with certificates using cURL while trying to access an HTTPS url?
...icates
In Arch Linux (Raspberry Pi)
# pacman -S ca-certificates
The documentation tells:
This package includes PEM files of CA certificates to allow SSL-based applications to check for the authenticity of SSL connections.
As seen at: Debian -- Details of package ca-certificates in squee...
WebDriver: check if an element exists? [duplicate]
...
You could alternatively do:
driver.findElements( By.id("...") ).size() != 0
Which saves the nasty try/catch
share
|
improve this answer
...
Why do I have to access template base class members through the this pointer?
... until the parameter is known. It's called two-phase compilation, and MSVC doesn't do it but it's required by the standard and implemented by the other major compilers. If you like, the compiler must compile the template as soon as it sees it (to some kind of internal parse tree representation), and...
How do I put a variable inside a string?
I would like to put an int into a string . This is what I am doing at the moment:
8 Answers
...
How can I easily convert DataReader to List? [duplicate]
...ties or fields to maps DataReaders to objects. (A bit like what LinqToSql does.) They save a bit of typing and may reduce the number of errors when coding for DBNull etc. Once you cache the generated code they can be faster then most hand written code as well, so do consider the “high road” i...
